Giselle Esteban gets 25 years to life in prison

A woman convicted of murdering a San Francisco Bay area nursing student has been sentenced to 25 years to life in prison.

Before issuing the sentence against Giselle Esteban on Monday, Alameda County Superior Court Judge Jon Rolefson said he had never seen a case with stronger evidence of premeditation.

A jury convicted Esteban in October of killing Michelle Le.

The 26-year-old Le went missing from a Hayward hospital parking lot in May 2011. Searchers discovered her badly decomposed remains in a canyon four months later.

Prosecutors said Esteban had grown increasingly enraged at a friendship between Le and Scott Marasigan, who has a young daughter with Esteban. In his remarks, Rolefson called the slaying a "cold-blooded murder."

But Esteban's lawyer said the killing was done in the heat of passion.